Hardware description language

Imagine design engineers needing to hand draw millions of transistors in their schematic. The task was simply impossible. A more efficient and productive method was needed to allow designers to create schematics with large numbers of logic gates within a reasonable timeframe. This  lead to the development of Hardware Description language (HDL). This new method allows a designer to code the logic functionality of a circuit in HDL. The code is then synthesized into logic gates using a synthesis tool. 

           The industry provides two languages for hardware description

1.      VHSIC Hardware description language

2.      Verilog  Hardware description language